Tensioning device for spools and the like



April 27 1926.

G. H. LUNEBURG musxouzue DEVICE FOR SPOOLS AND THE 141m Filed April 3, 1925 Patented-Apr. 27, 1926.

UNITED STATES PATENT OFFICE.-

eUs'rAvE H. LUNEBURG, 0F'AM'STERDAMLNEW YORK:

" TENSIONING DEVICE FOR SPOOLS' A1 \T'D THE LIKE.

Application filed April 3, 1 925; Serial No. 26,560.

gomery and State of New York, have in-' vented certain new and useful Improve- I ments in Tensioning Devices for Spools-and V the like; and I do hereby declare the following to be a full, clear, and exactdescr1ption of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to improvements in tensioning devices for spools and the like, but particularlyv for tensioning the yarn on the spools of carpet looms.

The primary object ofthe invention is to so conceal or house the tenslomng devices that they cannot catch or tangle up the yarn of a new spool placed in the loom.

rVVith t-his'and other objects in view theinvention consists in certain novel details of construction and combinations and ar-' i In the accompanying drawing,

Figure 1 is an elevational viewof a spool journaled on its standard in the loom, only a portion of the loom suppo ting the standard'being shown. I

- Fig. 2 is a perspectlve view looking at thenate standard is provided with the projections 20 and the tensioning means are placed a in adjacent ends of each pair of proximate end of the structure illustrated in Fig. 1.

- Fig. 3 is a vertical sectional view of the spool head. i

Fig. 4 is a detail of the removable side of the spool head detached.

Fig. 5 is a similar view of the brakemem the present instance.

her; and

Fig. 6 is a similar View of a modified form of brake member.

The standards 10, 10 in which the spools are journaled are mounted on the usual portion of the loom frame 11 and though only two standards are illustrated it will be understood that the number actually used depends upon the size or capacity of the loom. J ournaled in hearings in the standard are the spools 12 each standard supporting the proximate ends of each pair of adjacent spools, the spindle at one end of each spool being yieldingly projected beyond the end of the spool in order that the latter may be inserted in or removed from its bearings.

One head 13 of each spool is adapted to contain means for tensioning the yarn on the spool in order that it will be fed off of the same properly and according to the present invention these tensioning means are so enclosed or housed within the spool head that'there will be no, if any, possibility of the yarn on the spool, especially a fresh spool placed in the loom, becoming caught in said tensioning means. In the preferred form, the outer side 1a of the head fits rather tightly but removably in the peripheral flange 15 of the inner side 16 of the head, which latter sde is fixedly attached to spool 12, and the tensioning means are housed within or between these two sides 14, 16 of the head.

The outer side of the head also has a peripheral flange 17, the close fit between the flanges 17, 15 of the two causing the entire head to rotate with the spool, while the braking member 26 within the head remains stationary. For this reason said braking means has a block or lug 18 attached thereto in which there are one or more sockets 19 into which some fixed member located exteriorly of the head engages for holding the braking member against rotation. Preferably such holding means consist of one or more projections 20 on the standard 10, the removable side 14 of the head having an opening therein in order that said projections may extend into the head and engage said sockets. In actual practice each alterspools.

The tensioning or braking means proper may take'various forms,'two being shown in y In Figs. 1 to 5, the socketed block 18 is mounted on a brake band 21 which carries the braking member 26 in the form of'a facing of suitable material such as leather. The band possesses sufiicient resiliency to urge it into contact with the braking surface of the head, formed in this instance by the flanges 15, 17 of the head but the frictional engagement of these parts may be varied to place the yarn under proper tension as by a bolt 22 having a right hand thread on one end and a left hand thread on its opposite end with an end of the hand between the central portion of the bolt and a nut on each end whereby rotation of the bolt in one direction will take up on the band and rotation in the opposite direction will permit the band to expand and thus bear harder against. the spool head.

In the form of brake illustrated in Fig. 6, there is a disk 23 on which is secured suitable braking means, such as a plurality of springs 24 each carrying a braking elementv 26 of some material such as leather which is forced against the braking surface of the head, the face of inner side 16 in this instance. To hold disk 23 and the braking elements 26 against rotation said disk has holes 25 therein for cooperation with the projections 20 on the standard.

In both forms, the braking means are detached from the flange of the outer side. of the head and said side being only .frictionally locked to said head, the several parts can quickly be assembled. By housing. the braking' or tensioning means within the'head, regardless of the form of said means, there is no danger of the yarn from the spool being caught as it revolves with the spool.

What I claim is: a

1. In a tension device for spools, the com-- bination of a spool head, a brake member, a

spring for maintaining said brake'member in fictional en a 'ement with the head said a brake member and spring being enclosed.

Within the head, and means for holdingsaid brake member stationary while the spool and head are rotated.

2. In a tension device forv spools, the combination of a spool head, a brake member enclosed-within the head and'frictionally. en gaging the head, and means'fixed exteriorly bination of a spool head. having a removable outerface wlth an aperture therein, a brake member enclosed within the spoolhead, and means fixed exteriorly of the head and projecting through said aperture into engagement with the brake member for holding the latter against rotation.

5. In a tension device for spools, a head fixed on the spool, a standard in which the spool is journaled, a brake member enclosed in the head, and means carried by said standard projecting into the head and engaging said brake member for holding the brake member against rotation.

6. In a tension device for spools, a head having one side attached to the spool and a removable outer side adapted to rotate with the spool and attached side of the head, said removable side having an opening therein, a brake member enclosed between the two sides of the head, a standard onwhich the spool is journaled, and a projectionon said standard extending through said. opening and engaging the brake member to hold the latter against rotation. I

'7. In a tension device for spools, a head.

having one side'attached to the spooland a removable outer sideadapted to rotate with the spool and attached side ofthe. head,

said removable side havinganopening there? in, a brake member; enclosed. between the,

end of the spool and having an apertured, V

removable outer side adapted to rotate with the spool, a brakemember enclosed wlthln thehead and spring; pressed into frictional engagement with said head,.means for varying the frictional engagement between thebrake and head, and means fixed exteriorly of the head and connected to said-brake member for holding the latter againstrotati on. I

GUSTAVE H. LUNEBUR-GJ 

